CN221048989U

CN221048989U - MPP pipe extrusion die

Info

Publication number: CN221048989U
Application number: CN202322531880.2U
Authority: CN
Inventors: 陈根涛; 宋红伟; 王浩鹏
Original assignee: Yuzhou Zhongxianglian Plastic Industry Technology Co ltd
Current assignee: Yuzhou Zhongxianglian Plastic Industry Technology Co ltd
Priority date: 2023-09-18
Filing date: 2023-09-18
Publication date: 2024-05-31
Anticipated expiration: 2033-09-18

Abstract

The utility model provides an MPP pipe extrusion die, which comprises an outer cylinder body and a die core arranged in the outer cylinder body; the side wall of the outer cylinder body is provided with a first interlayer, the outer wall of the outer cylinder body is provided with a first water inlet and a first water outlet which are communicated with the first interlayer, and the end part of the outer cylinder body is provided with external threads; the mold core comprises a main body, one end of the main body is conical, a second interlayer is arranged on the side wall of the main body, a second water inlet and a second water outlet which are communicated with the second interlayer are also arranged on the side surface of the main body, and the second water inlet and the second water outlet are respectively connected with one ends of two elastic telescopic pipes; the telescopic ends of the two elastic telescopic pipes are respectively connected with two through holes arranged on the side wall of the first interlayer. The utility model can efficiently cool the MPP pipe extruded by the extrusion equipment, ensures the production efficiency of the MPP pipe, has simple and ingenious structural design, is easy to install and use, and has low manufacturing cost.

Description

MPP pipe extrusion die

Technical Field

The utility model relates to the technical field of MPP pipe production equipment, in particular to an MPP pipe extrusion die.

Background

The MPP pipe is also called MPP power cable protection pipe, adopts modified polypropylene as main raw material, has the characteristics of high temperature resistance and external pressure resistance, and is widely applied to pipeline engineering of municipal administration, telecommunication, electric power, gas, tap water, heating power and the like. In the production process of the MPP pipe, the steps of screening, processing, drying, extruding, die sizing, spray cooling, ink-jet printing, distance cutting, inspection and the like of the formula raw materials are needed.

In the actual production process, after the MPP pipe is extruded by equipment, the temperature is higher, and the traditional extrusion die is poor in condensation effect, so that the pipe is easy to deform during extrusion, and an independent cooling structure is often needed for cooling and shaping the extruded pipe, so that the production cost is improved, and the production efficiency is influenced.

Therefore, a new MPP tube extrusion die is needed to solve the above problems.

Disclosure of utility model

The utility model aims at overcoming the defects of the prior art, and provides an MPP pipe extrusion die, which comprises the following specific scheme:

An MPP pipe extrusion die comprises an outer cylinder body and a die core arranged in the outer cylinder body; the side wall of the outer cylinder body is provided with a first interlayer, the outer wall of the outer cylinder body is provided with a first water inlet and a first water outlet which are communicated with the first interlayer, and the end part of the outer cylinder body is provided with external threads; the mold core comprises a main body, one end of the main body is conical, a second interlayer is arranged on the side wall of the main body, a second water inlet and a second water outlet which are communicated with the second interlayer are also arranged on the side surface of the main body, and the second water inlet and the second water outlet are respectively connected with the bottom ends of the two elastic telescopic pipes; the telescopic ends of the two elastic telescopic pipes are respectively connected with two through holes formed in the side wall of the first interlayer.

Based on the above, the telescopic ends of the two elastic telescopic pipes are provided with truncated cone-shaped joints, and parts of the joints penetrate through the through holes of the side walls of the first interlayer and extend into the first interlayer.

Based on the above, the side surface of the joint is laid with rubber.

Compared with the prior art, the utility model has substantial characteristics and progress, and particularly has the following advantages:

The MPP pipe extrusion die provided by the utility model can efficiently cool and shape MPP pipes extruded by extrusion equipment, has a simple and smart structural design, is easy to install, and has low manufacturing cost.

Drawings

Fig. 1 is a schematic view of the overall structure of the present utility model.

FIG. 2 is a schematic view of the structure of the mold core in the present utility model.

Fig. 3 is a schematic view of the use state of the present utility model.

In the figure: 1. an outer cylinder; 1-1, a first interlayer; 1-2, a first water outlet; 1-3, a first water inlet; 1-4, external threads; 2. a mold core; 2-1. A main body; 2-2, a second interlayer; 2-3, an elastic telescopic tube; 2-4, a joint; 3. an extruder.

Detailed Description

The technical scheme of the utility model is further described in detail through the following specific embodiments.

Examples

As shown in fig. 1-3, the utility model provides an MPP pipe extrusion die, which comprises an outer cylinder 1 and a die core 2 arranged in the outer cylinder 1; the side wall of the outer cylinder body 1 is provided with a first interlayer 1-1, the outer wall of the outer cylinder body 1 is provided with a first water inlet 1-3 and a first water outlet 1-2 which are communicated with the first interlayer 1-1, and the end part of the outer cylinder body 1 is provided with external threads 1-4; the mold core 2 comprises a main body 2-1, one end of the main body 2-1 is conical, a second interlayer 2-2 is arranged on the side wall of the main body 2-1, a second water inlet and a second water outlet which are communicated with the second interlayer 2-2 are also arranged on the side surface of the main body 2-1, and the second water inlet and the second water outlet are respectively connected with the bottom ends of two elastic telescopic pipes 2-3; the telescopic ends of the two elastic telescopic pipes 2-3 are respectively connected with two through holes formed in the side wall of the first interlayer 1-1.

In order to facilitate rapid positioning and installation of the mold core 2 and the outer cylinder 1, the telescopic ends of the two elastic telescopic pipes 2-3 are provided with truncated cone-shaped joints 2-4, and parts of the joints 2-4 penetrate through holes in the side walls of the first interlayer 1-1 and extend into the first interlayer 1-1.

It should be noted that, a rubber is laid on the side surface of the joint 2-4, so that the joint 2-4 is in sealing connection with the side wall of the through hole.

The utility model has the specific working principle that: when the MPP pipe is produced, cooling water is introduced from the first water inlet 1-3, passes through the first interlayer 1-1 and the second interlayer 2-2 and is discharged from the first water outlet 1-2, raw materials are extruded from the extruder 3 and then are formed between the mold core 2 and the outer cylinder 1, and the MPP pipe is gradually cooled and formed under the action of the cooling water in the first interlayer 1-1 and the second interlayer 2-2.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.

Claims

1. An MPP pipe extrusion die, its characterized in that: comprises an outer cylinder body (1) and a mold core (2) arranged in the outer cylinder body (1); the side wall of the outer cylinder body (1) is provided with a first interlayer (1-1), the outer wall of the outer cylinder body (1) is provided with a first water inlet (1-3) and a first water outlet (1-2) which are communicated with the first interlayer (1-1), and the end part of the outer cylinder body (1) is provided with external threads (1-4); the mold core (2) comprises a main body (2-1), one end of the main body (2-1) is conical, a second interlayer (2-2) is arranged on the side wall of the main body (2-1), a second water inlet and a second water outlet which are communicated with the second interlayer (2-2) are also arranged on the side surface of the main body (2-1), and the second water inlet and the second water outlet are respectively connected with the bottom ends of two elastic telescopic pipes (2-3); the telescopic ends of the two elastic telescopic pipes (2-3) are respectively connected with two through holes arranged on the side wall of the first interlayer (1-1).

2. The MPP tube extrusion die of claim 1, wherein: the telescopic ends of the two elastic telescopic pipes (2-3) are provided with truncated cone-shaped joints (2-4), and parts of the joints (2-4) penetrate through the through holes in the side walls of the first interlayer (1-1) and extend into the first interlayer (1-1).

3. The MPP tube extrusion die of claim 2, wherein: the side surface of the joint (2-4) is coated with rubber.